Recreational waters
After a flood, recreational waters – including lakes, rivers, estuaries and beaches – are likely to be contaminated with sewage and chemicals.
There may also be unpredictable currents, fast flowing water and submerged hazards that are very dangerous.
Never swim in or attempt to drive through floodwaters.
Read more on tips for healthy swimming.
Shellfish
Shellfish includes oysters, mussels, clams, pipis, scallops, cockles, and razorclams.
After a flood, it is almost certain that harmful microorganisms and toxins will be present in waterways (including rivers, lakes, estuaries and the ocean) due to run-off from the land. Do not eat shellfish from flood affected waters as they can make you sick.
Fishing
Fish caught during flood periods should be rinsed prior to scaling and filleting.
Fish should be cooked thoroughly. You should avoid cross contamination between raw and cooked fish.